====OSI Pi Driver====

//Note that AB FactoryTalk uses a re-badged version of OSI Pi as its historian - this is the correct driver to use for FactoryTalk applications//

===Information===

Loads both live and historical point-data from the Wonderware eDNA historian.

^Driver Info^Detail^
|Driver Type:|**Live and History**|
|Platforms:|**Windows Only**|

===Driver Settings===

The driver has no options - all configuration is done via the eDNA API setup, or in the INI file located at **C:\ProgramData\InStep\DNASRV.ini**

Note that you may want to add some additional options to your eDNA configuration to improve live data performance.

If you have more than 1000 live points of data, you will need to increase the size of your point resolver cache in the eDNA API. To do this, add/edit the //client// section in your DNASRV.ini file.

<code>
[CLIENT]
POINT_RESOLVE_CACHE_SIZE=<the number of points needed>
</code>

===Point Settings===

Points are given either as eDNA short IDs, eDNA extended IDs, or as CHaD point references, in the form of //<instance path>//.//<attribute>//.

Examples include....

**CALC.NR291** \\
**CALC.Temperature_921** \\
**Site!Motor House!Motor 921.Temperature**

===Installation===

**Windows:** \\ Available on the [[http://www.optrix.com.au/library|ARDI Downloads]] site for Windows servers.